In an effort to promote the integration of noninvasive electrophysiological methods into marine mammal cognition research, I have developed a new tool—the Ring-Cap and Tail—for recording electrophysiological data using multi-electrode arrays resting on alert dolphins for brief, unobtrusive periods of time and a new technique—the Directional Electrode Placement System (DEPS)—for rapidly identifying and effectively reporting the relative placement of multiple recording channels, irrespective of subject size variation. Design information is freely provided by the developer, Dominie Writt, to all scientists (new and well-established) who express an interest helping to advance the integr